The Council of General Synod is meeting in private to discuss the marriage canon change proposal; they don’t want anyone to see the fur fly.
From here:
Given the communication from the House of Bishops at the end of February, the Planning and Agenda Team for the Council of the General Synod suggested to members of the Council that conversation be conducted in camera for two hours of their agenda today. This move was to ensure that members could process and work through the House of Bishops communication and to speak freely and without reservation.
The author of the article above goes to great length to tell us what in camera means.
Don’t pay any attention. In 1944 Jean-Paul Sartre wrote a play called In Camera. In the play, three damned souls are locked in a room in Hell to be each other’s torturers.
That’s what is really happening.